“First of all I'd like to say the customs and the cable are both insane, the customs look incredible and the linum cable and connector beat the hell out of any other CIEM I've seen around.
Cosmic Ears list this as a jack of all trades monitor which I do agree with. I'm coming from a 4BA model to this 2BA and I've been pleasantly surprised by the sound. I haven't had these a week yet so...” --daftpolecat

“The HY3 is a three-way, three-driver hybrid custom in-ear monitor from Sweden-based Cosmic Ears. It utilizes a dynamic driver for the bass and twin balanced armature drivers for the midrange and treble, which used to be a very rare configuration, although hybrids have increased in popularity over the past year. The bass unit looks to be around 8mm in diameter and has its own sound bore. The two...” --blueangel2323

The HY2 combines a dynamic driver for lows and a balanced armature for the mids and highs. This dynamic driver also delivers an increased soundstage. The HY2 is a great sounding monitor for those looking for something a little different by combing the 2 driver technologies.
Twin hybrid – 1 for lows, 1 for mids and highs
Full sized medical grade hard acrylic shell
Various...

Hear the music you love like never before. The Mi-1 custom headphone makes your tracks sound better than ever and blocks out annoying noise from the world around you. You'll hear music clearly and they are so comfortable you’ll forget you’re wearing them.
Handcrafted to exactly match your ear canal, this custom headphone will change the way you listen to music. Mi-1 is just ...

The Pure model is the fantastic entry model to our range of customs yet it still has the benefits of custom in ear monitor.
The Pure fits perfectly to your ears, these high-quality headphones deliver a rich sound that off-the-shelf earbuds simply cannot match.